CN106269210A - A kind of Multi-stage spiral Gravity Separation preprocess method containing molybdenum copper concentrate - Google Patents
A kind of Multi-stage spiral Gravity Separation preprocess method containing molybdenum copper concentrate Download PDFInfo
- Publication number
- CN106269210A CN106269210A CN201610741654.9A CN201610741654A CN106269210A CN 106269210 A CN106269210 A CN 106269210A CN 201610741654 A CN201610741654 A CN 201610741654A CN 106269210 A CN106269210 A CN 106269210A
- Authority
- CN
- China
- Prior art keywords
- molybdenum
- containing molybdenum
- copper
- copper concentrate
- grade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
A kind of Multi-stage spiral Gravity Separation preprocess method containing molybdenum copper concentrate of the present invention, step is: carry out 1 classification by long cone hydrocyclone that slurry input specification ф 150, cone angle containing molybdenum copper concentrate is 8 °, transfer pressure is 0.17～0.22 MPa, graded concentration < 30%, overflow pulp is proceeded to concentrator and carries out Gravity Separation, carrying out 2 classifications in the long cone hydrocyclone of underflow input specification ф 100, cone angle 8 ° after separation, transfer pressure is 0.18～0.24MPa, graded concentration < 25%.Being merged by the sand setting of 2 cyclone classifications, after merging, pulp density controls 28 32%, enters back into copper molybdenum FLOTATION SEPARATION operation, obtains the molybdenum concntrate containing molybdenum grade >=45%.This method solve containing molybdenum copper concentrate owing to ore pulp composition is complicated, the multipair copper-cobalt ore of fine-particle minerals brings adverse effect, there is wide accommodation, copper-cobalt ore low cost, advantage that molybdenum recovery is high.
Description
Technical field
The invention belongs to non-ferrous metal ore field, be specifically related to a kind of containing molybdenum copper concentrate carry out copper molybdenum FLOTATION SEPARATION it
Front a kind of preprocess method.
Background technology
Molybdenum is a kind of rare, precious refractory metal, is to produce steel alloy, rustless steel, heat resisting steel and alloy cast iron etc.
The important alloy element of product, is also important strategic material.
The Mo resource of China is the abundantest, and its reserves account for the 25% of World Molybdenum gross reserves, are only second to the U.S., occupies the world
Two, molybdenum in China resource is based on crude molybdenite, and major part is presented in symbiosis or association molybdenum in sulfide mineral,
Single molybdenum deposit is less, is that the main mineral deposit being associated with molybdenum often exists with porphyry copper deposit form with copper, is current copper molybdenum
Important sources.
Due to copper-molybdenum thing densification symbiosis in porphyry copper, structure complexity, disseminated grain size is uneven, and copper molybdenum floatability phase
Closely, to grind usually the having a characteristic that i.e. fine size, copper molybdenum ratio are greatly, basicity is high containing molybdenum copper concentrate, remain and select of floating technique output
Ore deposit medicament, ore pulp viscosity are big, and therefore, copper-cobalt ore difficulty is big, sorts cost high.For copper-cobalt ore, from 70 years last century
In generation, the art floated medicament research and the technical study of molybdenum to having carried out pressing down copper containing molybdenum copper concentrate in succession so far.
The research of copper-cobalt ore medicament has with application: sodium sulfide, NaHS that Dexing copper mine uses are current copper-cobalt ore
The widely used copper medicament that presses down, week soldier son propose sodium thioglycolate can do and press down copper and float molybdenum medicament, the cyanogen of the proposition such as Zhu Yushuan
Change sodium, nox etc. be also to press down copper medicament, Gu Zhijun, Yang Baodong et al. propose by oxidant+inhibitor combined method to pressing down copper
Floating molybdenum effect is obvious, and conventional oxidant has hydrogen peroxide, sodium hypochlorite, potassium permanganate, sodium dichromate etc..Above-mentioned each medicament is studied
With use, the most all there is positive effect, but be all with the copper concentrate total matter containing molybdenum as object of study, generally there is use
The problem that dose is big, molybdenum recovery is on the low side, copper-cobalt ore cost is high.
Copper-cobalt ore technical study has with application: the inflated with nitrogen method that Huang Jicun, Zhang Juncheng etc. propose, Yang Peng et al. research
Pulsating high gradient magnetic separation partition method, the former Soviet Union uses, includes the heating method that Zhang Baoyuan proposes, and Zhou Xu, Zhu Yuefeng etc. study
Flotation column partition method, the acid adding of Dexing copper mine research adjusts PH method etc..The research of above-mentioned each technique and use, under given conditions
All there is positive effect, but be all with the copper concentrate total matter containing molybdenum as object of study, generally there is complex process, molybdenum recovery inclined
Problem low, that copper-cobalt ore cost is high.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, it is provided that a kind of wide accommodation, copper molybdenum divide
From low cost, a kind of Multi-stage spiral Gravity Separation preprocess method containing molybdenum copper concentrate that molybdenum recovery is high.
The technical scheme is that a kind of Multi-stage spiral Gravity Separation preprocess method containing molybdenum copper concentrate, its feature
Being, the method comprises the following steps:
By containing copper grade > 20%, containing molybdenum grade > 0.1% ,-10 μm grain size contents > 10% containing molybdenum copper concentrate slurry input extremely
A kind of specification ф 150, cone angle are to carry out 1 classification in the long cone hydrocyclone of 8 °, transfer pressure be 0.17MPa～
0.22MPa, graded concentration < 30%.After classification, sand setting concentration controls at 28-32%, then can obtain containing molybdenum through copper molybdenum FLOTATION SEPARATION
The molybdenum concntrate of grade >=45%.
A kind of Multi-stage spiral Gravity Separation preprocess method containing molybdenum copper concentrate of the present invention, the method specifically includes following step
Rapid: step a: by containing copper grade > 20%, containing molybdenum grade > 0.1% ,-10 μm grain size contents > 10% containing molybdenum copper concentrate slurry input
Be that the long cone hydrocyclone of 8 ° carries out 1 classification to a kind of specification ф 150, cone angle, transfer pressure be 0.17MPa～
0.22MPa, and graded concentration < 30%, obtain sand setting；
Overflow pulp after step a processes is proceeded to concentrator and carries out Gravity Separation by step b), and after separation, underflow is defeated
Enter to a kind of specification ф 100, cone angle 8 ° long cone hydrocyclone in carry out 2 classifications, transfer pressure be 0.18MPa～
0.24MPa, and graded concentration < 25%, obtain sand setting.
Step c) obtains the sand setting of cyclone classification and merges after being processed by step a) and step b), after merging, pulp density controls
At 28-32%, enter back into copper molybdenum FLOTATION SEPARATION operation, obtain the molybdenum concntrate containing molybdenum grade >=45%.
Further, described containing molybdenum copper concentrate its formed before, molybdenum is presented in associated metal ore deposit, with sulphide ore
Being main, be starching containing molybdenum copper concentrate through the floating technique output of mill, molybdenum-bearing mineral is based on molybdenite.
Further, described containing molybdenum copper concentrate starch in remain multiple beneficiation reagent, pulp PH value belongs to middle strong basicity.
Further, be generally-74 μm content containing its granularity of molybdenum copper concentrate and exist more than 90%, wherein-10 μm content > 10%.
Further, after pretreatment: the μm grain size content fall containing molybdenum copper concentrate (sand setting)-10 is 36%～60%,
Being 75～91% containing molybdenum copper concentrate (sand setting) productivity, the residual beneficiation reagent containing molybdenum copper concentrate (sand setting) significantly reduces.
Compared with prior art, it is an advantage of the current invention that: first, the technology of the present invention and traditional copper-cobalt ore technology
Comparing, it is on the basis of traditional copper-cobalt ore technology, sets up one new technique, by traditional copper-cobalt ore technology critical point
Reach, it may be assumed that to the fine fraction by Multi-stage spiral Gravity Separation preprocess method, major part difficulty selected containing molybdenum copper concentrate total matter
Molybdenum-containing material material is separated, and takes sand setting material, enters back into copper molybdenum FLOTATION SEPARATION operation.This method preferably solve containing molybdenum copper concentrate by
, viscosity thin in raw material granularity is big, medicament is many, mineral interface is seriously polluted etc. to copper-cobalt ore brings disadvantageous key ask for residual
Topic, it is achieved that the high-effective classifying of the most de-" mud ", reagent removal and molybdenite reclaims.Secondly, the present invention considerably reduces copper molybdenum and divides
From cost, the flotation major pharmaceutical Na2S unit consumption range of decrease up to 30%～48%, select molybdenum comprehensive recovery the most do not drop had on the contrary bright
Aobvious lifting, lifting amplitude reaches 4%～17%.Again, the present invention have that wide accommodation, technique is simple and direct, economic benefit and environment
The feature that benefit is the most prominent.
Accompanying drawing explanation
Fig. 1 is the process chart of the embodiment of the present invention 1.
Fig. 2 is the process chart of the embodiment of the present invention 2.
Detailed description of the invention
The present invention is further illustrated by the following example, but is not restricted by the embodiments.All percentages in embodiment
Unless otherwise specified number refers both to quality.
Embodiment 1
A kind of a kind of Multi-stage spiral Gravity Separation preprocess method containing molybdenum copper concentrate of the present invention shown in Fig. 1, including
Following steps:
A kind of copper concentrate material Han molybdenum, containing copper grade 22.5%, containing molybdenum grade 0.385% ,-10 μm grain size content
12.4%, material concentration 23%.Containing molybdenum copper concentrate material by the long cone that ore slurry pump input to a kind of specification ф 150, cone angle are 8 °
Body hydrocyclone carries out 1 classification, transfer pressure 0.18MPa～0.20MPa, graded concentration 22%.1 time of classification generation
Sand setting-10 μm grain size content<6%, after sizing mixing, enter copper molybdenum FLOTATION SEPARATION operation, obtain the molybdenum essence containing molybdenum grade>=45%
Ore deposit.Technical data is shown in Table 1.
Table 1: the forward and backward technical specification of pretreatment contrasts
As shown in Table 1, the most pretreated to select molybdenum comprehensive recovery be 69.21%, molybdenum concentrate grade 40.16%, to former
Ore deposit sodium sulfide unit consumption is 48kg/t；And to select molybdenum comprehensive recovery after using pretreatment new technique be 73.62%, molybdenum concentrate grade is
45.68%, it is 25kg/t to raw ore sodium sulfide unit consumption.The after cure sodium unit consumption that uses of the new technology have dropped 23kg/t, decreases by
48%, select molybdenum comprehensive recovery to improve 4.4%, remarkable in economical benefits.
Embodiment 2
A kind of a kind of Multi-stage spiral Gravity Separation preprocess method containing molybdenum copper concentrate of the present invention shown in Fig. 2, including
Following steps:
A kind of copper concentrate material Han molybdenum, containing copper grade 24.2%, containing molybdenum grade 0.53% ,-10 μm grain size content 26.2%,
Material concentration 22%.Containing molybdenum copper concentrate material by the long cone waterpower rotation that ore slurry pump input to a kind of specification ф 150, cone angle are 8 °
Carrying out 1 classification in stream device, transfer pressure is 0.19MPa～0.21MPa, and graded concentration is 21%；By the overflow ore deposit of 1 classification
Slurry proceeds to concentrator and carries out Gravity Separation, and after separation, underflow input is to a kind of specification ф 100, the long cone hydraulic cyclone of cone angle 8 °
Carrying out 2 classifications in device, transfer pressure is 0.20MPa～0.22MPa, graded concentration 18%；Sand setting by 1,2 cyclone classifications
Merge, ore pulp-10 μm grain size content after merging < 11%, and concentration is controlled about 30%, enter back into copper molybdenum FLOTATION SEPARATION and make
Industry, obtains the molybdenum concntrate containing molybdenum grade >=45%.Technical data is shown in Table 2.
Table 2: the forward and backward technical specification of pretreatment contrasts
As shown in Table 2, the most pretreated to select molybdenum comprehensive recovery be 59.62%, molybdenum concentrate grade 42.86%, to former
Ore deposit sodium sulfide unit consumption is 50kg/t；And to select molybdenum comprehensive recovery after using pretreatment new technique be 77.51%, molybdenum concentrate grade is
46.87%, it is 28kg/t to raw ore sodium sulfide unit consumption.The after cure sodium unit consumption that uses of the new technology have dropped 22kg/t, decreases by
44%, select molybdenum comprehensive recovery to improve 17.89%, economic benefit is huge, simultaneously because the declining to a great extent of sodium sulfide unit consumption, ring
Border benefit is the most notable.
Embodiment 3
A kind of a kind of Multi-stage spiral Gravity Separation preprocess method containing molybdenum copper concentrate of the present invention shown in Fig. 2, including
Following steps:
A kind of copper concentrate material Han molybdenum, containing copper grade 24.42%, containing molybdenum grade 0.62% ,-10 μm grain size content
38.3%, material concentration 22.5%.Containing molybdenum copper concentrate material by the length that ore slurry pump input to a kind of specification ф 150, cone angle are 8 °
Carrying out 1 classification in cone hydrocyclone, transfer pressure is 0.18MPa～0.21MPa, and graded concentration is 20%；By 1 time point
The overflow pulp of level proceeds to concentrator and carries out Gravity Separation, and after separation, underflow input is to a kind of specification ф 100, the long cone of cone angle 8 °
Carrying out 2 classifications in body hydrocyclone, transfer pressure is 0.21MPa～0.23MPa, graded concentration 16%；By 1,2 eddy flows
The sand setting of classification merges, ore pulp-10 μm grain size content after merging < 15%, and concentration is controlled about 30%, enter back into copper molybdenum
FLOTATION SEPARATION operation, obtains the molybdenum concntrate containing molybdenum grade >=45%.Technical data is shown in Table 2.
Table 3: the forward and backward technical specification of pretreatment contrasts
As shown in Table 3, the most pretreated to select molybdenum comprehensive recovery be 58.2%, molybdenum concentrate grade 41.54%, to raw ore
Sodium sulfide unit consumption is 54kg/t；And to select molybdenum comprehensive recovery after using pretreatment new technique be 75.76%, molybdenum concentrate grade is
46.63%, it is 28.8kg/t to raw ore sodium sulfide unit consumption.The after cure sodium unit consumption that uses of the new technology have dropped 25.2kg/t, the range of decrease
Reaching 46.6%, select molybdenum comprehensive recovery to improve 17.56%, economic benefit and environmental benefit are huge.
Claims (6)
1. the Multi-stage spiral Gravity Separation preprocess method containing molybdenum copper concentrate, it is characterised in that the method includes following step
Rapid:
By containing copper grade > 20%, containing molybdenum grade > 0.1% ,-10 μm grain size contents > 10% the slurry input containing molybdenum copper concentrate to a kind of rule
Lattice ф 150, cone angle are to carry out 1 classification in the long cone hydrocyclone of 8 °, and transfer pressure is 0.17MPa～0.22 MPa,
<30%, after classification, sand setting concentration controls at 28-32% graded concentration, then can obtain containing molybdenum grade>=45% through copper molybdenum FLOTATION SEPARATION
Molybdenum concntrate.
2. the Multi-stage spiral Gravity Separation preprocess method containing molybdenum copper concentrate, it is characterised in that: step a: copper grade will be contained >
20%, containing molybdenum grade > 0.1% ,-10 μm grain size contents > 10% the slurry input containing molybdenum copper concentrate be 8 ° to a kind of specification ф 150, cone angle
Long cone hydrocyclone in carry out 1 classification, transfer pressure is 0.17MPa～0.22 MPa, graded concentration < 30%,
To sand setting；
Overflow pulp after step a processes is proceeded to concentrator and carries out Gravity Separation by step b), and after separation, underflow inputs extremely
A kind of specification ф 100, cone angle 8 ° long cone hydrocyclone in carry out 2 classifications, transfer pressure be 0.18MPa～
0.24MPa, and graded concentration < 25%, obtain sand setting；
Step c) obtains the sand setting of cyclone classification and merges after being processed by step a) and step b), after merging, pulp density controls
28-32%, enters back into copper molybdenum FLOTATION SEPARATION operation, obtains the molybdenum concntrate containing molybdenum grade >=45%.
3. according to the preprocess method described in right 1 or 2, it is characterised in that: described containing molybdenum copper concentrate its formed before, molybdenum
It is presented in associated metal ore deposit, based on sulphide ore, is starching containing molybdenum copper concentrate through the floating technique output of mill, molybdenum-bearing mineral
Based on molybdenite.
4. according to the preprocess method described in right 1 or 2, it is characterised in that described containing molybdenum copper concentrate starch in remain multiple ore dressing
Medicament, pulp PH value belongs to middle strong basicity.
5. according to the preprocess method described in right 1 or 2, it is characterised in that be generally-74 μm content containing its granularity of molybdenum copper concentrate
> more than 90%, wherein-10 μm content > 10%.
6. according to the preprocess method described in right 1 or 2, it is characterised in that after pretreatment: containing molybdenum copper concentrate (sand setting)-10 μ
M grain size content fall is 36%～60%, is 75～91% containing molybdenum copper concentrate (sand setting) productivity, and (sand setting) containing molybdenum copper concentrate is residual
Beneficiation reagent is stayed to significantly reduce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610741654.9A CN106269210A (en) | 2016-08-25 | 2016-08-25 | A kind of Multi-stage spiral Gravity Separation preprocess method containing molybdenum copper concentrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610741654.9A CN106269210A (en) | 2016-08-25 | 2016-08-25 | A kind of Multi-stage spiral Gravity Separation preprocess method containing molybdenum copper concentrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106269210A true CN106269210A (en) | 2017-01-04 |
Family
ID=57676325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610741654.9A Pending CN106269210A (en) | 2016-08-25 | 2016-08-25 | A kind of Multi-stage spiral Gravity Separation preprocess method containing molybdenum copper concentrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106269210A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107309078A (en) * | 2017-08-16 | 2017-11-03 | 江西铜业股份有限公司 | A kind of copper-cobalt ore dressing method of the copper concentrate containing molybdenum |
| CN110560251A (en) * | 2019-08-09 | 2019-12-13 | 江西铜业集团有限公司 | Pretreatment-magnetic-floating combined mineral separation process for separating copper and molybdenum in molybdenum-containing copper concentrate |
| CN111871595A (en) * | 2020-07-09 | 2020-11-03 | 江西铜业股份有限公司 | Pre-selection method of molybdenum-containing copper concentrate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1603002A (en) * | 2004-10-29 | 2005-04-06 | 东北大学 | Highly efficient ore dressing system of medium-low class aluminium ore |
| WO2010019063A1 (en) * | 2008-08-13 | 2010-02-18 | Ljubomir Dragosan | Molybdenum process of identifying the collective concentrate cu-mo |
| CN105709919A (en) * | 2016-02-02 | 2016-06-29 | 大连地拓重工有限公司 | Comprehensive recovery method for copper and molybdenum in copper-molybdenum intergrowth tailings |
-
2016
- 2016-08-25 CN CN201610741654.9A patent/CN106269210A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1603002A (en) * | 2004-10-29 | 2005-04-06 | 东北大学 | Highly efficient ore dressing system of medium-low class aluminium ore |
| WO2010019063A1 (en) * | 2008-08-13 | 2010-02-18 | Ljubomir Dragosan | Molybdenum process of identifying the collective concentrate cu-mo |
| CN105709919A (en) * | 2016-02-02 | 2016-06-29 | 大连地拓重工有限公司 | Comprehensive recovery method for copper and molybdenum in copper-molybdenum intergrowth tailings |
Non-Patent Citations (2)
| Title |
|---|
| 郭株辉: "德兴铜矿选钼工艺改造与生产实践", 《现代矿业》 * |
| 雷贵春: "旋流器在德兴铜矿铜钼分离工艺中的应用", 《矿冶》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107309078A (en) * | 2017-08-16 | 2017-11-03 | 江西铜业股份有限公司 | A kind of copper-cobalt ore dressing method of the copper concentrate containing molybdenum |
| CN110560251A (en) * | 2019-08-09 | 2019-12-13 | 江西铜业集团有限公司 | Pretreatment-magnetic-floating combined mineral separation process for separating copper and molybdenum in molybdenum-containing copper concentrate |
| CN111871595A (en) * | 2020-07-09 | 2020-11-03 | 江西铜业股份有限公司 | Pre-selection method of molybdenum-containing copper concentrate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107309078A (en) | A kind of copper-cobalt ore dressing method of the copper concentrate containing molybdenum | |
| CN105032602B (en) | Highly-efficient preparation method of ultra-white quartz sand utilizing vein quartz minerals | |
| CN104722393B (en) | A kind of beneficiation method for improving the microfine speculum iron rate of recovery | |
| CN102357400A (en) | Method for processing low-grade kaolinite ore | |
| CN106964480B (en) | A kind of fine grinding sorted suitable for micro fine particle magnetite stone-hierarchical composition new process | |
| CN106269210A (en) | A kind of Multi-stage spiral Gravity Separation preprocess method containing molybdenum copper concentrate | |
| CN1311910C (en) | Ore dressing method for paigeite | |
| CN106000620A (en) | Beneficiation method for recovering high iron and high sulfur concentrate from copper tailings containing sulfur and iron | |
| CN110369121B (en) | Screening-gravity separation process added before phosphorite direct flotation operation | |
| CN114178045B (en) | Simple beneficiation method for chalcocite-containing coarse-grain embedded copper sulfide ore | |
| CN102861659B (en) | Selective flocculation multi-section desliming process capable of being used for beneficiation | |
| CN112871439B (en) | Industrial production method for separating fine-grained copper-molybdenum bulk concentrate by using pulsating high-gradient magnetic separation technology | |
| CN107029873B (en) | A kind of new process that iron tailings selects again | |
| CN109604045A (en) | The method of lime and beneficiation reagent dosage is reduced in copper ores with high sulfur content mining production | |
| CN103433122B (en) | A kind of medium tin ore sub-prime classification and sorting technique | |
| CN103447147B (en) | Novel low grade hematite ore concentration and water purification process | |
| CN209985567U (en) | Low-grade magnesite pre-enrichment system | |
| CN108580054B (en) | Mineral separation process for two-product molybdenum ore | |
| CN114918037B (en) | Method for recycling valuable metals from low-grade complex copper-tin-sulfur multi-metal ore in steps | |
| CN114643133B (en) | Beneficiation method for copper sulfide nickel tailings in non-uniform distribution | |
| RU2751185C1 (en) | Method for increasing quality of magnetite concentrates | |
| CN109847923A (en) | Efficient recovery process of extremely-poor weathered primary ilmenite | |
| CN106669966A (en) | Beneficiation method for specular hematite in iron ore | |
| CN105964401A (en) | Mineral separation process for high-iron nepheline ore | |
| CN110711645A (en) | Beneficiation method for gold-bearing sulfide ore |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |